Bilstein Products
PSS9 Coil Over System: The PSS9 system allows you to set your MINI Cooper and Cooper S low and tight for optimum performance or back to a more stock-like ride height within minutes. The PSS9 system feature true coil-over struts with custom monotube gas shocks and progressive rate coil springs. CNC machined aluminum adjustable perches allow quick and precise front and rear ride height adjustment. Click for more info